Arunachalam Kumar

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Second order filter structures have widespread applications. They are also used in realization of higher order filter. Among the second order filters, KHN (Kerwin, Huelsman, and Newcomb) filter is used as a reference while designing second order filters with other active elements. A new KHN filter, employing two OTA's, two ground capacitance and one(More)
John W. McArthur, Jeffrey D. Sachs, Guido SchmidtTraub Amir Attaran’s Policy Forum [1] raises important points on the poor quality of data for some indicators used to measure progress on the Millennium Development Goals (MDGs), but, sadly, uses these fi ndings to draw the wrong conclusions. The evidence he presents on a small number of indicators is(More)
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